Patents by Inventor David Lasalmonie

David Lasalmonie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for recycling zirconium tetrafluoride into zirconia
    Patent number: 7988946
    Abstract: The method allows ZrF4 to be converted into ZrO2, by carrying out a thermal conversion operation based on solid ZrF4 and water which are heated in a reactor until converted into ZrO2. The initial ratio by weight of ZrF4 to water is in particular between 1/5 and 1/500, and this ratio is maintained substantially for the entire duration of the conversion. The thermal conversion is carried out at a temperature greater than or equal to 300° C. The invention is used in particular for recycling pickling baths for zirconium alloys.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: August 2, 2011
    Assignee: Compagnie Europeenne du Zirconium-Cezus
    Inventors: Léonard Chittaro, David Lasalmonie
  • Method for recycling zirconium tetrafluoride into zirconia
    Publication number: 20070003474
    Abstract: The method allows ZrF4 to be converted into ZrO2, by carrying out a thermal conversion operation based on solid ZrF4 and water which are heated in a reactor until converted into ZrO2. The initial ratio by weight of ZrF4 to water is in particular between 1/5 and 1/500, and this ratio is maintained substantially for the entire duration of the conversion. The thermal conversion is carried out at a temperature greater than or equal to 300° C. The invention is used in particular for recycling pickling baths for zirconium alloys.
    Type: Application
    Filed: June 28, 2006
    Publication date: January 4, 2007
    Inventors: Leonard Chittaro, David Lasalmonie